6465090 has 16 divisors (see below), whose sum is σ = 15516288. Its totient is φ = 1724016.

The previous prime is 6465077. The next prime is 6465097. The reversal of 6465090 is 905646.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 215503 = 6465090 / (6 + 4 + 6 + 5 + 0 + 9 + 0).

It is not an unprimeable number, because it can be changed into a prime (6465097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107722 + ... + 107781.

It is an arithmetic number, because the mean of its divisors is an integer number (969768).

Almost surely, 2^6465090 is an apocalyptic number.

6465090 is an abundant number, since it is smaller than the sum of its proper divisors (9051198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6465090 is a wasteful number, since it uses less digits than its factorization.

6465090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215513.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 6465090 is about 2542.6541251220. The cubic root of 6465090 is about 186.2908503102.

The spelling of 6465090 in words is "six million, four hundred sixty-five thousand, ninety".